Reply
Thread Tools
Estel's Avatar
Posts: 5,028 | Thanked: 8,613 times | Joined on Mar 2011
#1
It is something I was about to ask long time ago - could anyone give me a tip on how to, conveniently (terminal command, for example) disable screen backlight all-together?

It would be very nice for using device outdoors, in direct sunlight - our trans-reflective screen does awesome job to light-up image just by the power of sun (when holding device in position that gives max sun reflective illumination - indicated by seeing everything very clearly, but in b&w/greyscale only, kinda like e-ink, increasing brightness to max only makes picture *less* visible), and backlight, even on min, not only waste power, but get in the way, too.

Ideally, it would be best to integrate 0-backlight into Simple Brightness Applet package - as an additional "check field", like "backlight always on" is already - but, for a starter, knowing a sole terminal command would do.

Thanks in advance,
/Estel
__________________
N900's aluminum backcover / body replacement
-
N900's HDMI-Out
-
Camera cover MOD
-
Measure battery's real capacity on-device
-
TrueCrypt 7.1 | ereswap | bnf
-
Hardware's mods research is costly. To support my work, please consider donating. Thank You!
 

The Following User Says Thank You to Estel For This Useful Post:
Posts: 1,100 | Thanked: 2,797 times | Joined on Apr 2011 @ Netherlands
#2
Code:
root
echo 0 > /sys/class/backlight/acx565akm/brightness
 

The Following 11 Users Say Thank You to ade For This Useful Post:
n900hacker's Avatar
Posts: 87 | Thanked: 75 times | Joined on Sep 2012 @ Brescia, Italy
#3
How you can revert this?
__________________
Nokia N900 64 GB @ ideal voltage (250-600 mHz)
Kernel-power v53
CSSU testing 21.2011.38-1 T Maemo10

Nokia N810 16 GB
CSSU Stable
Diablo Turbo
 
Posts: 1,258 | Thanked: 672 times | Joined on Mar 2009
#4
Setting brightness in settings to max or lowest first, and disabling power save feature, could perhaps stop it from changing brightness again when ambient light changes.
 

The Following 2 Users Say Thank You to shadowjk For This Useful Post:
FlashInTheNight86's Avatar
Posts: 138 | Thanked: 185 times | Joined on Feb 2014
#5
Originally Posted by Estel View Post
Ideally, it would be best to integrate 0-backlight into Simple Brightness Applet package - as an additional "check field", like "backlight always on" is already
That'd be fantastic.
 
Posts: 252 | Thanked: 221 times | Joined on Jul 2010
#6
The natural question then is, is it possible to turn the backlight off and keep the lockscreen on to continuously display the clock, missed calls, messages, etc?
__________________
21.2011.38-1Smaemo7 (CSSU Stable)
2.6.28.10power53 (not overclocked)
Yes, I search before posting.
 

The Following 2 Users Say Thank You to chill For This Useful Post:
Wasmachinemann-NL's Avatar
Posts: 386 | Thanked: 1,094 times | Joined on Aug 2011 @ Netherlands
#7
I got the opposite: I want to have my screen enabled but have a disabled TS, makes it all easier in my bike mount [no accidental clicks while navigating]
 
Posts: 1,100 | Thanked: 2,797 times | Joined on Apr 2011 @ Netherlands
#8
Originally Posted by Wasmachinemann-NL View Post
I got the opposite: I want to have my screen enabled but have a disabled TS, makes it all easier in my bike mount [no accidental clicks while navigating]
See: http://talk.maemo.org/showpost.php?p=622134&postcount=2
 

The Following 5 Users Say Thank You to ade For This Useful Post:
Posts: 252 | Thanked: 221 times | Joined on Jul 2010
#9
Cool...although, having tried it now, it seems that the disabling doesn't survive locking the screen.
__________________
21.2011.38-1Smaemo7 (CSSU Stable)
2.6.28.10power53 (not overclocked)
Yes, I search before posting.
 
Estel's Avatar
Posts: 5,028 | Thanked: 8,613 times | Joined on Mar 2011
#10
Which is good, as you would need ssh to re-enable touch input, otherwise
__________________
N900's aluminum backcover / body replacement
-
N900's HDMI-Out
-
Camera cover MOD
-
Measure battery's real capacity on-device
-
TrueCrypt 7.1 | ereswap | bnf
-
Hardware's mods research is costly. To support my work, please consider donating. Thank You!
 
Reply


 
Forum Jump


All times are GMT. The time now is 01:19.